20,261 real negative results, null findings, and replication failures · Negative / Null Result Report. Search the index →
WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record compiled from open scholarly databases; the abstract is shown in full only where the paper is openly licensed, otherwise a short excerpt under fair use. Classifications are automated and approximate.
Nishida, Akira, ニシダ, アキラ, 西田, 晃
The Michelson-Morley experiment failed to detect evidence for the wind of luminiferous aether. However, the fact that light propagates without affecting aether wind on the rotating earth means that the medium is also rotating with us. For…
View details →Ling, Siew-Eng, Liew, Venus Khim-Sen, Lau, Sie-Hoe
This study shows that augmented Dickey-Fuller (ADF) test failed to detect covariance nonstationary series. Supportive of Ahamada (2004), this study finds that the cumulative sums of squares procedure in Inclán and Tiao (1994) is useful to…
View details →Junpei Wang (776880), Jian Tu (490588), Jichun Yang (458427) et al. · 2015
“Not detected” means microarrays failed to detect the significant signals of LncRNAs in mouse livers. Detailed information of dysregulated plasma LncRNAs was summarized in S2 and S3 Tables. The detailed information of liver LncRNAs had…
View details →Nishida, Akira, ニシダ, アキラ, 西田, 晃
The Michelson-Morley experiment failed to detect evidence for the wind of luminiferous aether. However, the fact that light propagates without affecting aether wind on the rotating earth means that the medium is also rotating with us. For…
View details →I. G. Rusakov, R. V. Ulianov, E. V. Filonenko et al. · 2015
The main challenge of treating non-muscle invasive bladder cancer is multifocal tumors. Current methods of diagnosis are failed to detect all superficial flat tumor lesions in bladder mucosa. The use of fluorescence imaging with…
View details →· 2022 · The Brown University Psychopharmacology Update
The antimuscarinic agent scopolamine did not demonstrate antidepressant effects in a randomized trial that used an active placebo comparator and involved 40 patients with major depressive disorder. Researchers stopped the trial for…
View details →Anna Kramvis (304621), Neil A. Martinson (198606), Trevor G. Bell (304619) et al. · 2013
“n” indicates the number of participants in each group. ALT and CD4 cell counts for each group are indicated in the table below the plot as “Median (Interquartile Range)”. Viral loads and CD4 cell counts did not differ significantly…
View details →Oates, David, David Oates · 1976
The concentration of lead in fish muscle tissue from lakes where boating is heavy and where it is prohibited was measured. The lead levels ranged from less than 0.05 to 1.35 ppm but did not differ significantly between those in the…
View details →Thomas Christian (2546665), Barbara Kabon (652817), David Emler (14540201) et al. · 2023
BackgroundIn relatively healthy middle-aged patients, recent studies have shown that supplemental oxygen did not significantly increase one-year mortality after noncardiac surgery. If supplemental oxygen influences long-term mortality,…
View details →Ramage, Thomas R. · 2002
A quick look at the “No Significant Difference Phenomenon” website might leave the casual observer to the conclusion that an overwhelming amount of data exists to support the notion that technologically-mediated instruction and/or…
View details →Alison Knopf · 2023 · Alcoholism & Drug Abuse Weekly
State laws that allow medical cannabis to be prescribed and dispensed did not result in the reduced treatment of chronic noncancer pain, researchers have found. In the study, “Effects of U.S. State Medical Cannabis Laws on Treatment of…
View details →Shrikhande, Milind, Fendler, Richard · 2012
Numerous studies show there is no significant difference between student performance in online versus traditional courses. Unfortunately, these studies are unable to identify how a given student would have performed in the other format.…
View details →Camilla Fabbri, Timothy Powell-Jackson, Katherine Rodrigues et al. · 2023 · PLOS Global Public Health
EmpaTeach was the first intervention to address teacher violence to be tested in a humanitarian setting and the first to focus on reducing impulsive use of violence, but a cluster randomised trial found no evidence that the intervention…
View details →Ibrahim Bashan, Turhan Toros · 2018 · Journal of Human Sciences
Aim: In this research it was aimed if there is a difference between mastery-performance climate and task-ego orientation variables of basketball players who did and did not experience a sports injury.Methods: This study group consists of…
View details →Bob de Ruiter · 2023 · arXiv
In many fields of experimental science, papers that failed to replicate continue to be cited as a result of the poor discoverability of replication studies. As a first step to creating a system that automatically finds replication studies for a given paper, 334 replication studies and 344 replicated studies were collected. Replication studies could be identified in the dataset based on text content at a higher rate than chance (AUROC = 0.886). Additionally, successful replication studies could be distinguished from failed replication studies at a higher rate than chance (AUROC = 0.664).
View details →Amritanshu Pandey, Marko Jereminov, Gabriela Hug et al. · 2017 · arXiv
Recent advances in power system simulation have included the use of complex rectangular current and voltage (I-V) variables for solving the power flow and three-phase power flow problems. This formulation has demonstrated superior convergence properties over conventional polar coordinate based formulations for three-phase power flow, but has failed to replicate the same advantages for power flow in general due to convergence issues with systems containing PV buses. In this paper, we demonstrate how circuit simulation techniques can provide robust convergence for any complex I-V formulation tha
View details →James Kirby, Ioana Krehan, Michele Gubian · 2026 · arXiv
This study examines the extent to which the wav2vec2.0 architecture exhibits evidence of compensation for phonological context. We conducted a pseudo-replication of a perceptional compensation experiment on Mandarin Chinese tones, and compared the embedding similarities and probing classifier outputs between a purely self-supervised pre-trained model and a model fine-tuned for Mandarin ASR. No evidence of compensation was found in the embedding similarities of the purely pre-trained model. Probing classifiers showed some evidence of compensation in addition to the expected layer-wise improveme
View details →Jaron Maene, Mingxiao Li, Marie-Francine Moens · 2021 · arXiv
The lottery ticket hypothesis states that sparse subnetworks exist in randomly initialized dense networks that can be trained to the same accuracy as the dense network they reside in. However, the subsequent work has failed to replicate this on large-scale models and required rewinding to an early stable state instead of initialization. We show that by using a training method that is stable with respect to linear mode connectivity, large networks can also be entirely rewound to initialization. Our subsequent experiments on common vision tasks give strong credence to the hypothesis in Evci et a
View details →Robert McCarthy, Daniel C. H. Tan, Dominik Schmidt et al. · 2024 · arXiv
Scaling deep learning to massive and diverse internet data has driven remarkable breakthroughs in domains such as video generation and natural language processing. Robot learning, however, has thus far failed to replicate this success and remains constrained by a scarcity of available data. Learning from videos (LfV) methods aim to address this data bottleneck by augmenting traditional robot data with large-scale internet video. This video data provides foundational information regarding physical dynamics, behaviours, and tasks, and can be highly informative for general-purpose robots. This su
View details →Nataša Pavlov, Ana Mitrašinović · 2025 · arXiv
The recent discovery of the most extended ultra-diffuse galaxy (UDG), Nube, has raised yet another question about the validity of the cold dark matter (CDM) model. The studies using cosmological and zoom-in simulations, which assume CDM, failed to replicate galaxies with the structural properties of Nube. However, the simulation box or the examined population of UDGs may be too narrow to fully capture the range of effects that can lead to the formation of such extraordinary galaxies. In this work we present a case study of a Nube-like galaxy from TNG100, the most extended simulated UDG examine
View details →Hao Guo, Han Wang, Di Zhu et al. · 2025 · arXiv
Modeling spatial heterogeneity in the data generation process is essential for understanding and predicting geographical phenomena. Despite their prevalence in geospatial tasks, neural network models usually assume spatial stationarity, which could limit their performance in the presence of spatial process heterogeneity. By allowing model parameters to vary over space, several approaches have been proposed to incorporate spatial heterogeneity into neural networks. However, current geographically weighting approaches are ineffective on graph neural networks, yielding no significant improvement
View details →Filip K. Malinowski, Frederico Martins, Peter D. Nissen et al. · 2017 · arXiv
We operate a resonant exchange qubit in a highly symmetric triple-dot configuration using IQ-modulated RF pulses. At the resulting three-dimensional sweet spot the qubit splitting is an order of magnitude less sensitive to all relevant control voltages, compared to the conventional operating point, but we observe no significant improvement in the quality of Rabi oscillations. For weak driving this is consistent with Overhauser field fluctuations modulating the qubit splitting. For strong driving we infer that effective voltage noise modulates the coupling strength between RF drive and the qubi
View details →Guoliang Shang, Lukas Maiwald, Hagen Renner et al. · 2018 · arXiv
Non-iridescent structural colors based on disordered arrangement of monodisperse spherical particles, also called photonic glass, show low color saturation due to gradual transition in reflectivity. No significant improvement is usually expected from particles optimization, as the Mie resonances are broad for small dielectric particles with moderate refractive index. Moreover, the short range order of a photonic glass alone is also insufficient to cause sharp spectral features. We show here, that the combination of a well-chosen particle geometry with the short range order of a photonic glass
View details →Hoyeon Chang, Jinho Park, Seonghyeon Ye et al. · 2024 · arXiv
Despite the recent observation that large language models (LLMs) can store substantial factual knowledge, there is a limited understanding of the mechanisms of how they acquire factual knowledge through pretraining. This work addresses this gap by studying how LLMs acquire factual knowledge during pretraining. The findings reveal several important insights into the dynamics of factual knowledge acquisition during pretraining. First, counterintuitively, we observe that pretraining on more data shows no significant improvement in the model's capability to acquire and maintain factual knowledge.
View details →Junwei Yang, Xiao-Xin Li, Feihong Liu et al. · 2021 · arXiv
Recent studies on T1-assisted MRI reconstruction for under-sampled images of other modalities have demonstrated the potential of further accelerating MRI acquisition of other modalities. Most of the state-of-the-art approaches have achieved improvement through the development of network architectures for fixed under-sampling patterns, without fully exploiting the complementary information between modalities. Although existing under-sampling pattern learning algorithms can be simply modified to allow the fully-sampled T1-weighted MR image to assist the pattern learning, no significant improveme
View details →· 2022 · The Brown University Psychopharmacology Update
Eight infusions of ketamine administered over 4 weeks did not significantly improve symptoms of post‐traumatic stress disorder (PTSD) in a group of veterans and active‐duty military who had failed on prior antidepressant treatment, a…
View details →Ivan Silajev, Niels Victor, Phillip Mortimer · 2022 · arXiv
This paper presents an application of the LayoutLMv3 model for semantic table detection on financial documents from the IIIT-AR-13K dataset. The motivation behind this paper's experiment was that LayoutLMv3's official paper had no results for table detection using semantic information. We concluded that our approach did not improve the model's table detection capabilities, for which we can give several possible reasons. Either the model's weights were unsuitable for our purpose, or we needed to invest more time in optimising the model's hyperparameters. It is also possible that semantic inform
View details →Brandon W. Langley, Garrett Vanacore, Philip W. Phillips · 2015 · arXiv
We compute conductivities of strongly-interacting and non-uniform charge densities dual to inhomogeneous anti-de Sitter--black hole spacetimes. Backreacting bulk scalars with periodic boundary profiles, we construct generalizations of Reissner-Nordström-AdS that interpolate between those used in two previous studies --- one that reports power-law scaling for the boundary optical conductivity and one that does not. We find no evidence for power-law scaling of the conductivity, thereby corroborating the previous negative result that gravitational crystals are insufficient to generate the power-l
View details →R. Foot · 2004 · arXiv
We examine the recent CDMS II results in the context of the mirror matter interpretation of the DAMA/NaI experiment.We find that the favoured mirror matter interpretation of the DAMA/NaI experiment -- a $He'/H'$ dominated halo with a small $O'$ component is fully consistent with the null results reported by CDMS II. While the CDMS II experiment is quite sensitive to a heavy $Fe'$ component, and may yet find a positive result, a more decisive test of mirror matter-type dark matter would require a lower threshold experiment using light target elements.
View details →Cheongho Han · 1994 · arXiv
Spin vectors of 60 galaxies in the ``Ursa Major Filament'' are obtained from CCD images and spectroscopic determinations of the directions of rotation. These data are used to remove the four-fold degeneracy introduced by the project ed images of galaxies, making possible the complete reconstruction of the galaxy spin vectors. Several possible organizations of spin vectors are investigated by means of statistical analyses of the three-dimensional spin vector maps. The results indicate that there exists no significant alignment of galaxy spin vectors with respect to the supergalactic plane, the
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